Folding analog-to-digital converter
US8232904B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2010 |
| Grant date | Jul 31, 2012 |
| Priority date | — |
| Expiry date | Oct 8, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/141
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A folding analog-to-digital converter including: a reference voltage generator, a track-and-hold circuit and a first pre-amplification circuit. The reference voltage generator generates a plurality of reference voltages. The track-and-hold circuit generates a sampling control signal having a voltage level lower than or equal to a level of a power supply voltage by maintaining an initial level of a boost capacitor voltage at a level lower than a level of a power supply voltage, and samples and holds an input voltage signal in response to the generated sampling control signal to generate a sampled signal. The first pre-amplification circuit amplifies each of voltage differences between the sampled signal and each of the plurality of reference voltages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.